The DP-366D Desoldering Pump Sucker is a professional-grade manual desoldering tool engineered for high-efficiency extraction of molten solder from printed circuit boards (PCBs), through-hole joints, connector pins, and discrete electronic components. Featuring a double-ring, double-air-open vacuum piston design, it creates a powerful instantaneous negative suction vacuum (up to 32 cm-Hg) that removes solder in a single stroke with minimal kickback. Built with a lightweight, high-impact non-slip ABS plastic housing and an anti-static, heat-resistant PTFE (Teflon) nozzle, the DP-366D ensures ESD-safe operation while protecting delicate PCB copper pads and semiconductor pins from thermal and mechanical stress.

Specifications

• Brand / Model: Pro'sKit / Industry Standard DP-366D (Professional Desoldering Pump Series)
• Tool Type: Manual Spring-Loaded Mechanical Plunger Desoldering Pump
• Suction Capability: ≥ 32 cm-Hg (Approx. 42.7 kPa Peak Instantaneous Negative Pressure)
• Piston Seal Mechanism: Dual O-Ring Oil Seal System (Double-Seal Airtight Vacuum Chamber)
• Housing Material: High-Impact, Flame-Retardant Engineered ABS Plastic (Lightweight & Corrosion-Free)
• Grip Design: Textured Ergonomic Non-Slip Body with Recessed Cocking Thumb-Rest
• Nozzle Material: High-Grade Anti-Static, Heat-Resistant PTFE (Polytetrafluoroethylene / Teflon)
• Nozzle Temperature Rating: Continuous operational contact up to 300°C; short-term thermal excursions up to 350°C
• Nozzle Tip Dimensions:
  • Tip Inner Diameter (ID): Approx. 2.5 mm to 2.8 mm (Optimized for standard PTH lead pins)
  • Tip Outer Diameter (OD): Approx. 5.5 mm (Tapered profile for high component clearance)
• Electrostatic Discharge (ESD) Protection: Conductive/anti-static material blend prevents static buildup on sensitive ICs
• Spring Mechanism: High-Carbon Tempered Steel Compression Spring (Low-recoil actuation)
• Overall Length (Primed / Latched): Approx. 185 mm to 190 mm (Approx. 7.5 Inches)
• Overall Length (Extended / Released): Approx. 210 mm (Approx. 8.27 Inches)
• Chamber Diameter: Approx. 24 mm to 26 mm
• Net Tool Weight: Approx. 60 g to 75 g

Features

• Dual-Loop Airtight Vacuum Piston: Engineered with dual self-lubricating rubber O-rings to prevent vacuum air leakage, generating stronger, more consistent negative pressure than single-ring desoldering suckers.
• Anti-Static Replaceable PTFE Nozzle: High-lubricity Teflon tip resists solder adhesion and thermal warping while mitigating static discharge risks around sensitive MOS and CMOS semiconductor gates.
• Low-Recoil Soft-Touch Action: The spring-release button mechanism incorporates internal dampening to reduce wrist fatigue and eliminate sudden tip kick, preventing accidental pad lifting or scratching on fine PCB tracks.
• Ergonomic One-Handed Operation: The plunger can be cocked against a work surface or using one thumb, leaving the technician's dominant hand free to position the soldering iron.
• Quick-Detachable Modular Body: The front cylinder barrel, nozzle assembly, and rear plunger cap unscrew easily by hand for fast solder slag disposal and routine maintenance without tools.

Common Applications

• PCB Component Rework & Repair: Cleanly desoldering multi-pin through-hole DIP ICs, transformers, relays, electrolytic capacitors, and terminal strips from single and multi-layer boards.
• Through-Hole De-Clogging: Clearing plugged vias, solder pads, and eyelets to allow immediate insertion of replacement components without re-drilling.
• Solder Bridge Clearance: Rapidly removing excess solder fillets and clearing accidental solder shorts across dense connector pins and switch terminals.
• Electronics Assembly & Maker Benches: Essential manual rework tool for educational STEM labs, DIY audio builds, robotics assembly, and hardware hacking.
• Field Maintenance & Diagnostics: Portable, non-electric desoldering tool for technicians repairing industrial equipment, power inverters, and automotive ECUs on-site.

Usage Tips

• Optimal Desoldering Sequence:
  • Step 1: Push down the plunger rod until the internal catch clicks securely into the cocked position.
  • Step 2: Place your soldering iron tip (heated to 320°C–350°C) onto the target joint until the solder forms a fully liquid, reflective pool (approx. 2 to 3 seconds).
  • Step 3: Position the PTFE nozzle flush against the joint, enclosing the component lead while keeping the iron tip in light contact with the solder pool to prevent premature cooling.
  • Step 4: Press the trigger release button firmly to extract the liquid solder, then withdraw both the iron and the sucker simultaneously.
• Priming Stubborn Joint Solder: For old, oxidized, or high-temperature lead-free (RoHS) solder, melt a small amount of fresh 60/40 or 63/37 rosin-core solder onto the joint before attempting extraction. The fresh flux and lead blend lowers the liquidus temperature and improves thermal transfer for a clean, one-shot draw.
• Maintaining Proper Tip Seal: Keep the PTFE nozzle perpendicular (80° to 90°) to the PCB surface. Tilting the nozzle allows ambient air to rush in from the sides, drastically reducing the negative pressure required to draw solder up from deep through-holes.
• Debris Disposal: Empty the internal solder debris compartment regularly before it reaches half capacity. Excess solder bits inside the cylinder reduce air volume and can foul the piston seals.
• O-Ring Maintenance: If the plunger begins to feel gritty or suction weakens over time, disassemble the barrel, clear out any loose solder flakes, and wipe a light film of dielectric silicone grease onto the dual rubber O-rings. Never use petroleum-based lubricants or aggressive solvent sprays, which degrade rubber seals.